Automatic shoe-machine.



E. E. WINKLEY.

AUTOMATIC SHOE MAGHINE.

APPLICATION FILED JULY 6, 190B.

Patented July 8, 1913.

6 SHEETSSHEET 1.

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COLUMBIA FLAluuGkaPfl CO WASHINGTDN, D c,

E. E. WINKLEY.

AUTOMATIC SHOE MACHINE.

APPLICATION FILED JULY 6, 1908.

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AUTOMATIC SHOE MACHINE.

APPLICATION FILED JULY a, 1908.

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. Patented July 8,1913. Q

E. E. WINKLEY.

AUTOMATIC SHOE MACHINE.

APPLICATION FILED JULY 6, 190a.

Patented July 8, 1913.

5 SHEETS-SHEET 4.

COLUMBIA PLANouRAvH ca WASHINGTON. D. c.

E. E. WINKLBY. AUTOMATIC SHOE MACHINE.

APPLICATION FILED JULY 6, 1908.

Patented July 8, 1913..

'5 SHEETS-SHEET 5.

[Ia/emanm/Mvw COLUMBIA PLANOGRAPH 120-. WASHINGTON. D. c,

ERASTUS E. IVINKLEY, OF LYNN, MASSACHUSETTS.

AUTOMATIC SHOEJVIAGHINE.

Specification of Letters Patent.

Application filed July 6, 1908.

Patented July 8, 1913. Serial No. 441,977.

To all whom it may concern Be it known that I, EnAs'rUs E. l/VINKLEY,citizen of the United States, residing at Lynn, in the county of Essexand State of Massachusetts, have invented certain new and usefulImprovements in Automatic Shoe-Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

The invention relates to machines for operating upon boots and shoes inwhich the relative movements between the shoe and operating means areai'itomatically effected and controlled as the point of operation of theoperating means is transferred around the shoe so that the shoe is actedupon automatically without any attention on the part of the operator. Inmachines of this type the shoe is supported upon a jack and mechanism isprovided for automatically correcting the relative position of the jackand the instrumentalities operating upon the shoe as the point ofoperation is transferred about the shoe.

The object of the invention is to provide a mechanism for controllingthe correcting mechanism of this type of machine which shall be simplein construction, and which shall operate in a certain and reliablemanner and with little strain and wear upon the parts.

To this end the invention consists in certain features and combinationsset forth in the claims, the advantages of which will be obvious topersons skilled in the art from the following detail description of amachine which embodies the various featuris of the invention in theirpreferred forms.

The invention will be readily understood from an inspection of theaccompanying drawings, in which liigure 1 is a side elevation of amachine embodying the invention; Fig. 2 .is a sectional plan view withcertain of the parts removed to show the mechanism for operating andcontii'olling the movements of the shaft which carries the cams of thecorrecting mechanism; Fig. 3 is a detail elevation of the drivingmechanism, the parts being broken away; Fig. 1 is a sectional plan viewof the parts shown in Fig. 3; Fig. 5 is a detail elevation of thedriving mechanism,

looking toward the left in Fig. 2; Fig. 6 is a transverse sectionalelevation of the parts shown in Fig. 3; and Figs. 7, 8 and 9 are detailviews of parts of the latching mechamsm.

In the drawings the invention is shown embodied in a machine similar inmany respects to the machine illustrated in my prior Patent No.1,030,627, dated June 25, 1912, and application, Serial'No. 325,567,filed July 11, 1906. In this machine the nieans for operating upon theshoe consists of a sewing mechanism indicated at A in Fig. 1 of thedrawings which is the same in construction as the well known Goodyearwelt and turn shoe sewing machine disclosed in Patent No. 412,704,October S, 1889.

The shoes to be operated upon are carried upon a jack, and correctingmechanism is provided for changing the relative position of the sewingmechanism and the shoe as the sewing operation progresses. Thiscorrecting mechanism includes a series of cams secured upon a cam shaftto which intermittent movements are imparted at proper intervals duringthe transfer of the point of operation of the sewing mechanism about theshoe. The construction and arrangement of these parts of the machine arethe same as in the machine shown and fully described in the abovepatent.

In the machine shown in the drawings the shaft 1 on which the cams ofthe correcting mechanism are secured is driven through a worm Wheel 2secured to the shaft, and engaged by a worm 3 secured to a worm shaft 4.The worm shaft is provided with a gear 5 which is connected through anintermediate gear 6 with a gear 7 secured to a sleeve 8 which is mountedto turn loosely upon the main driving shaft 9 of the machine. The sleeve8 is intermittently driven through a clutch, one member of whichconsists of a disk 10 formed on the sleeve, and the other member ofwhich consists of a clutch body 11 surrounding the disk 10 and securedto the driving shaft 9. A ball carrying disk 12 is loosely mounted uponthe sleeve 8, and is provided with a laterally extending flange whichlies between the inner surface of the clutch member 11 and the disk 10,and is provided with a series of recesses in which the spring pressedclutch balls 13 are carried. The disk 10 is provided with a series ofwedging surfaces 14 for cooperating with the balls in connecting anddisconnecting the clutch members. The ball carrying disk is connected bysprings 15 with arms which project from the sleeve 8, and these springstend to rotate the ball carrying disk in a direction to cause the ballsto wedge between the surfaces 14 and the inner surface of the clutchmember 11 and bind the clutch mem bers together.

The clutch is normally held out of action by means of a controlling stopin the form of a pin 16 which normally projects into position to beengaged by a radially projecting lug 17 on the ball carrying disk andprevent rotation of the disk. \Vhen the pin 16 is withdrawn, the springs15 act to immediately move the clutch balls into position where they arewedged between the surfaces 14 and the inner surface of the clutch member 11, and securely unite the parts of the clutch. so that motion isimparted to the cam shaft 1 through the sleeve 8 and connected gearinguntil the clutch is again disengaged by the engagement of the lug 17with the stop pin.

The withdrawal of the controlling pin 16, and the engagement of theclutch which drives the correcting mechanism, is effected at intervalsduring the transfer of the point of operation of the sewing mechanismaround the shoe by the action of a controlling mechanism, and the pin isautomatically returned into position to disengage the clutch after theclutch has made a single revolution. In the construction shown, themechanism for operating the controlling pin 16 to cause the engagementof the clutch comprises a bar 18 mounted to slide in the bearings 19,and carrying a collar 20 which is provided with a groove 21 engaged bythe flange 22 of a collar secured to the controlling pin 16. The pinoperating bar 18 is forced in a direction to withdraw the pin and causethe engagement of the clutch by a spring 23 interposed between one ofthe bearings 19 and the collar 20. The bar is held in normal positionagainst the tension of the spring 23 by a latching toggle 24, the linksof which are held in position when the toggle is straightened by aspring 25. The devices for breaking the toggle and thus releasing thebar 18, so that the spring 23 may act to quickly withdraw thecontrolling pin 16 and cause the engagement of the clutch, comprises avertically arranged rod 26 mounted to slide in bearings 27 and havingits lower end arranged above the pivotal connection between the links ofthe toggle 24. The rod 26 is actuated to strike a blow upon the togglelinks, and thus quickly break the toggle and release the spring 23 by aspring 28 arranged between the upper bearing 27 and the collar 29secured to the actuating rod. The upper end of the rod 26 is connectedto an arm 30 secured to one end of a rock shaft 31-, the other end ofwhich is provided with an arm 32 which is connected by a link 33 withthe arm 34 of a bell crank lever. The other arm 35 of the bell cranklever is provided with a laterally projecting spring pressed pin 36which is normally supported upon a block 37 (Figs. 7 and 8). By theengagement of the pin 36 with the block 37, the rod 26 is supportedagainst the tension of the spring 28 in normal position with its lowerend above the toggle 24. Then the latching block 37 is disengaged fromthe pin 36, the rod 26 is released and is actuated by the spring 28 tobreak the toggle. The block 37 is secured upon a bar 38 which is mountedto slide in supports 39, and is forced in a direction to move the blockout of engagement with the pin 36 by a spring 40. V

The bar 38 is held in normal position against the tension of the spring40 by mechanism which is tripped at intervals during the transfer of thepoint of operation of the sewing mechanism about the shoe by trippingdevices carried by a controller which is connected to move with the shoesupporting jack. The controller is in the form of a plate 41 indicatedin dotted lines in Fig. 2, which has the general shape ofa'shoe sole,and is connected to move with the shoe supporting jack in the mannershown and described in the applications above referred to. Thecontroller plate is provided with a series of trip pins 42 arranged toact upon a spring pressed latch 43 which is mounted upon the free end ofa lever 44, the other end of which is connected to actuate the latch bar38. The latch lever 44 is pivoted at 45 to a supporting arm 46, which isin turn pivoted at 47 to the support 48 on which the latch bar 38 ismounted. The free end of the supporting arm 46 is provided with alateral extension 49 arranged to bear against the edge of the controllerplate 41, and held in engagement therewith by a spring (not shown) whichis coiled about its pivot. hen the latching mechanism is in normalposition the latch 43 is in engagement with a detent 50 mounted on theend of the supporting arm 46, so that the latch bar 38 is held in normalposition against the tension of the spring 40, and the forward end ofthe latch 43 is held in the path of the pins 42. lVhen one of the pins42 engages and trips the latch 43, the latch bar 38 is released and ismoved forward by the spring 40 to disengage the block 37 from the pin36, so that the driving mechanism for the correcting mechanism is throwninto operation through the connections described.

lVhen the driving clutch for the correcting mechanism is thrown intoaction by the withdrawal of the controlling pin 16, it will remain inaction until the pin is again advanced into position to be engaged bythe lug on the pawl carrying disk of the clutch, when the rotation ofthe disk will be arrested, and the clutch will be disengaged and thrownout of action. The advance of the controlling pin is automaticallyeffected before the clutclr has completed a single revolution, so thatwhenever the clutch is engaged through the action of the trippingdevices of the controller it makes a single revolution and is thenautomatically disengaged. The devices for advancing the controlling pin16 and thus disengaging the clutch after" it has made a singlerevolution comprise a ca m 51 formed on the sleeve 8 and arranged toengage a roll carried on the upper end of a lever 52. The lower end ofthe lever is provided with a laterally proj ecting pin 53 arranged toengage an arm 54 secured to one end of a rock shaft 55, the other end ofwhich carries an arm 56 arranged to underlie the toggle 24L. lVhen thetoggle Ql is broken in the manner above described to cause thewithdrawal of the controlling pin 16, the toggle links are supportedupon the arm- 56, and after the clutch and sleeve 8 have made a partialrevolution, the cam 51 acting upon the lever 52 rocks the rock shaft 55in a direction to raise the arm 56 and thus straighten the toggle. Thestraightening of the toggle forces the bar 18 back against the tensionof the spring n3, thus returning-the controlling pin 16 to normalposition, and resets the toggle so that the bar 18 and controlling pinare latched in posit-ion against the tension of the operating spring 23.

During the rotation of the clutch, and prior to the resetting of thetoggle and re-' turn of the clutch controlling pin 16, the latchingmechanism which restrains the toggle breaking rod, and which is trippedby the controller mechanism, is re-set. The devices for re-setting thelatching bar 88 and controller operated tripping mechanism comprise arod 57 (Figs. 2, 7 and 8) which is mounted to slide in the bar 58,- andis held in normal position by a spring 59. The front end of the rod 57is provided with a pin 60 arranged to engage a lateral projection on thelatching block 37. The rear end of the rod 57 carries a collar 61 whichis provided with an inclined surface (32 arranged to be engaged by aninclined cam surface (58' 011 a block G l; The block G l is secured toone end of a rod 65, the other end of which is connected to the end ofan arm 66 which extends upward from a sleeve 67. The sleeve 67 ismounted upon a rock shaft 68, and is provided with a second arm 69, theend of which carries a roll arranged to be engaged by a cam 70 formed onthe sleeve 8. A spring 71 holds the rod 65 and cam block 6 in retractedposition, so that the pin 60 on the rod 57 normally stands at somedistance in advance of the latch block 37, and does not interfere withthe unlatching movement of the bar 38 when the latching mechanism isreleased by the engagement of one of the tripping pins 42 with the latchl3. After the driving clutch for the correcting mechanism has made abouta half revolution, the cam 7 O rides against the end of the arm 69, thusadvancing the rod 65 and cam block 63 so that the rod 57 is moved in adirection to retract the latching bar 38 and reset the latchingmechanism. The cam immediately passes beyond the end of the arm 59, sothat the cam block 6-3 is retracted and the rod 57 is advanced to normalposition where it will not interfere with the next unlatching movementof the latch bar 88. When the latch bar 38 is thus retracted, the pin 36is back of the block 87, and this pin yields to allow the retractingmovement of the latch bar and block 37. When the cam block 63 isadvanced to reset the latching mechanism, and during the final forwardmovement of the block, a cam surface 72 rides under the free end of anarm 73 which is secured to the rock shaft 7L which carries the bellcrank lever 34-, 35 and acts to raise the arm 35 of the bell cranklever, thus resetting the toggle operating rod and bringing the pin 36in the arm of the bell crank lever above the latching block 37. The pinimmediately springs forward so that it is supported by the latchingblock, and thus the toggle operating rod is latched in position untilthe trip mechanism is again operated to throw the driving mechanism forthe correcting mechanism into operatio-n.

l/Vhen the driving clutch is thrown out of operation, the sleeve 8 andclutch member 10 are retained in position by a locking pawl 75 which isarranged to engage a notch formed in the flange 7 6 on which the cam 51'is formed (Fig. 6).

In addition to the tripping mechanism already described, the machine isprovided with a mechanism for tripping the latching bar 38 during eachcycle of operations performed by the sewing mechanism when sewing aroundthe toe. This mechanism is the same in construction as the correspondingmechanism shown and described in the patent above referred to, and iscontrolled by a cam 77 secured to the cam shaft 1, and acting throughconnections which are fully explained in said patent.

Although the invention has been described as embodied in a machine forsewing shoes, it will be understood that it is applicable to machinesfor performing operations of various kinds where the services of askilled operator are usually necessary to guide the shoe, and it willalso be understood that the invention is not limited to the details ofconstruction and arrangement illustrated and described, and that thespecific construction and arrangement of the parts may be varied ormodified without departing from the invention.

Having set forth the nature and object of the invention, what I claimis 1. An automatic shoe machine, having, in combination, means foroperating on a shoe, a jack, mechanism for correcting the relativeposition of the operating means and jack, a driving clutch therefor, aspring operated device and mechanical connections controlling theclutch, means for latching the device in clutch disengaging position,and controlling mechanism acting to operate the latch at intervals,substantially as described.

2. An automatic shoe machine, having, in combination, means foroperating on a shoe, a jack, mechanism for correcting the relativeposition of the operating means and jack, a driving clutch therefor, aspring operated device and mechanical connections for controlling theclutch, means for latching the device in clutch disengaging position, acontroller connected to move with the jack and provided with a series oftrips, and connections between the trips and latching means,substantially as described.

3. An automatic shoe machine, having, in combination, means foroperating on a shoe, a jack, mechanism for correcting the relativeposition of the operating means and jack, a driving clutch therefor, aspring operated device for controlling the engagement and disengagementof the clutch, means for latching the device in clutch dis engagingposition, a spring operated device for releasing the latching means,means for latching the latter operating device, and tripping mechanismacting to operate said latter latching means at intervals, substantiallyas described.

4. An automatic shoe machine, having, in combination, means foroperating on a shoe, a jack, mechanism for correcting the relativeposition of the operating means and jack, a driving clutch therefor, adevice for controlling the engagement and disengagement of the clutch, atripping mechanism for controlling the movement of the device intoclutch engaging position, and means acting to automatically re-set thetripping mechanism and to return the clutch controlling device intoclutch disengaging position, substantially as described.

5. An automatic shoe machine, having, in combination, means foroperating on a shoe, a jack, mechanism for correcting the relativeposition of the operating means and jack, a driving clutch therefor, aspring operated device for .controlling the engagement and disengagementof the clutch, a latching toggle for holding the device in clutchdisengaging position, tripping mechanism for breaking the toggle atintervals during the transfer of the point of operation of the operatingmeans around the shoe, and means acting to automatically re-set thetripping mechanism and the toggle, substantially as described.

6. An automatic shoe machine, having, in combination, means foroperating on a shoe, mechanism for correcting the relative position ofthe operating means and shoe, a driving clutch therefor, a stop forcontrolling the engagement and disengagement of the clutch, a spring foroperating the stop to cause the engagement of the clutch, devices forrestraining the spring and cont-rolling mechanism acting to release thespring at intervals during the transfer of the point of operation aroundthe shoe, substantially as described.

7 An automatic shoe machine, having, in

combination, means for operating on a shoe, mechanism for correcting therelative position of the operating means and shoe, a driv ing clutchtherefor, a stop for controlling the engagement and disengagement of theclutch, a spring for operating the stop to cause the engagement of theclutch, latching devices for restraining the spring, a controllerconnected with the shoe and provided with a series of trips andconnections between the trips and latching means, substantially asdescribed.

, 8. An automatic shoe machine, having, in combination, means foroperating on a shoe, mechanism for correcting the relative position ofthe operating means and shoe, a driving clutch therefor, a stop forcontrolling the "engagement and disengagement of the clutch, a springfor operating the stop to cause the engagement of the clutch, a latchingdevice for restraining the spring, a spring-operated device forreleasing the latching device, means for restraining the spring of theoperating device, and tripping mechanism acting to release the latteroperating device at intervals during the transfer of the point ofoperation around the shoe, substantially as described.

9. An automatic shoe machine, having, in combination, means foroperating on a shoe, mechanism for correcting the relative position ofthe operating means and shoe, a driving clutch therefor, a device forcontrolling the engagement and disengagement of the clutch, a trippingmechanism for controlling the movement of the device in clutch-engagingposition, and cams connected with the clutch for resetting the trippingmechanism and returning the clutch-controlling device into clutchdisengaging position, substan tially as described.

10. An automatic shoe machine, having, in combination, means foroperating on a shoe, mechanism for correcting the relative posi tion ofthe operating means and shoe, a driving clutch therefor, a springoperated stop for controlling the engagement and disengagement of theclutch, a latching toggle for restraining the spring, tripping mechanismfor breaking the toggle at intervals during the transfer of the point ofoperation of the operating means around the shoe, and means acting toautomatically reset the tripping mechanism and toggle, substantially asdescribed.

11. An automatic shoe machine, having, in combination, means foroperating on a shoe, mechanism for correcting the relative position ofthe operating means and shoe, mechanism for intermittently operating thecorrecting mechanism including a clutch, a controlling device forcontrolling the engagement and disengagement of the clutch, controllingmechcanism acting to move the device into clutch engaging position atintervals, and cams driven by the clutch and connected to re-set thecontrolling mechanism and return the controlling device to clutchdisengaging position, substantially as described.

In testimony whereof I aflix my signature, in presence of two witnesses.

ERASTUS E. WINKLEY.

Witnesses:

N. D. MGPI-IAIL, ANNIE C. RICHARDSON.

(Ionics of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents. Washington, D. 0.

